Paleontology Lab

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Across
  1. 3. plants of the class Gymnospermae having seeds not enclosed in an ovary
  2. 7. Change a change in the world's climate
  3. 8. the earth science that studies fossil organisms and related remains
  4. 11. a type of body fossil that forms when crystals fill a mold
  5. 14. An enormous crocodile ancestor with blade-like teeth walked on two legs
  6. 15. plants having seeds in a closed ovary
  7. 19. the northernmost dinosaur known to have ever lived
  8. 21. from 230 to 63 million years ago
  9. 22. any placental mammal of the order Primates
  10. 24. realated to the famous t-rex; had a meat-free diet
Down
  1. 1. a genus of squid relatives that lived during the Jurassic period
  2. 2. lacking a backbone or spinal colum
  3. 4. a type of fossil that provides evidence of the activities of ancient organisms
  4. 5. Most famous carnivore of all time; from Jurassic period
  5. 6. flightless bird with a head the size of a horse's wandering about in the winter twilight of the high Artic
  6. 9. the largest, longest, and heaviest snake ever discovered
  7. 10. A fierce marine lizard that patrolled the sea more than 65 million years ago
  8. 12. lived in temperate forests in what is now the south of South America during the Upper Cretaceous period
  9. 13. The most ferocious-looking teeth ever seen on a mammal
  10. 16. the process of covering the earth with glaciers or masses of ice
  11. 17. a new species of hadrosaur from utah
  12. 18. vertebrate having an amnion surrounding the embryo
  13. 20. The big dino lived in the late-Cretaceous North Africa
  14. 23. a new species of pterosaur from China